import time
from datetime import datetime, timedelta

from flask import current_app
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants
from info.models import User, News
from info.utils.common import user_login_data

from . import admin_blu

@admin_blu.route("/news_review_detail/<int:news_id>")
def news_review_detail(news_id):
    news_id = request.args.get("news_id")
    if not news_id:
        return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    # 通过id查询新闻
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    # 返回数据
    data = {"news": news.to_dict()}
    return render_template('admin/news_review_detail.html', data=data)


@admin_blu.route("/news_review")
def news_review():
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords",None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status !=0]
    #如果关键字存在,那么就添加关键字搜索
    if keywords:
        filters.append((News.title.contains(keywords)))

    try:
        #*列表就是解包,如*args,*kwargs
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_review.html', data=context)

@admin_blu.route("/user_list")
def user_list():

    page = request.args.get("page", 1)

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    uses = []
    current_page = 1
    total_page = 1

    try:
        paginate = User.query.filter(User.is_admin == False).paginate(page, constants.ADMIN_USER_PAGE_MAX_COUNT, False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    #进行模型列表转字典列表
    user_dict_li = []
    for user in users:
        user_dict_li.append(user.to_admin_dict())

    data = {
        "users": user_dict_li,
        "total_page": total_page,
        "current_page": current_page
    }

    return render_template("admin/user_list.html",data=data)



@admin_blu.route("/user_count")
def user_count():
    #总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin==False).count()
    except Exception as e:
        current_app.logger.error(e)

    #月新增数
    mon_count = 0
    t = time.localtime()
    begin_mon_date = datetime.strptime(("%d-%02d-01" % (t.tm_year, t.tm_mon)), "%Y-%m-%d")

    try:
        mon_count = User.query.filter(User.is_admin==False,User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    #日新增数
    day_count = 0
    t = time.localtime()
    begin_day_date = datetime.strptime(("%d-%02d-%02d" % (t.tm_year, t.tm_mon,t.tm_mday)), "%Y-%m-%d")

    try:
        day_count = User.query.filter(User.is_admin==False,User.create_time>begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)

    #折现图数据
    active_time = []
    active_count = []

    today_date_str = ("%d-%02d-%02d" %(t.tm_year,t.tm_mon,t.tm_mday))

    today_date = datetime.strptime(today_date_str,"%Y-%m-%d")

    for i in range(0,31):
        begin_date = today_date - timedelta(days=i)

        end_date = today_date - timedelta(days=i-1)

        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date, User.last_login < end_date).count()

        active_count.append(count)
        active_time.append(begin_date.strftime("%Y-%m-%d"))


    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time":active_time,
        "active_count":active_count
    }
    return render_template("admin/user_count.html",data = data)




@admin_blu.route("/index")
@user_login_data
def index():
    user = g.user
    return render_template("admin/index.html",user = user.to_dict())


@admin_blu.route('/login',methods=["GET","POST"])
def login():

    if request.method == "get":
        #判断当前是否有登录,如果有登录,直接重定向到管理员后台主页
        user_id = session.get("user_id",None)
        is_admin = session.get("is_admin",False)
        if user_id and is_admin:
            return redirect(url_for("admin.index"))
        return render_template('admin/login.html')
    username = request.form.get("username")
    password = request.form.get("password")

    if not all([username,password]):
        return render_template("admin/login.html",errmsg="参数错误")
    #查询当前用户
    try:
        user=User.query.filter(User.mobile==username,User.is_admin==True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template("admin/login.html",errmsg="用户信息查询失败")
    if not user:
        return render_template("admin/login.html",errmsg="未查询到用户的信息")

    if not user.check_password(password):
        return render_template("admin/login.html",errmsg="用户或者密码错误")

    #保存用户的登录信息
    session["user_id"] = user.id
    session["mobile"] = user.mobile
    session["nick_name"] = user.nick_name
    session["is_admin"] = user.is_admin

    #  跳转界面,跳转到后满管理首页
    return redirect(url_for("admin.index"))


